According to my book, the 68-73 220D takes a K4C025 transmission,
and the 280 takes a W4B025.

The cars with a K4C025 are:
68-73 220
68-69 230
68-72 250 & 250C
73 280C
68-71 280S

__________________
Chuck Taylor
Falls Church VA
'66 200, '66 230SL, '96 SL500. Sold: '81 380SL, '86 300E, '72 250C, '95 C220, 3 '84 280SL's '90 420SEL, '72 280SE, '73 280C, '78 280SE, '70 280SL, '77 450SL, '85 380SL, '87 560SL, '85 380SL, '72 350SL, '96 S500 Coupe